What's the difference between bore and trepan?

Bore


Definition:

  • (imp.) of Bear
  • (v. t.) To perforate or penetrate, as a solid body, by turning an auger, gimlet, drill, or other instrument; to make a round hole in or through; to pierce; as, to bore a plank.
  • (v. t.) To form or enlarge by means of a boring instrument or apparatus; as, to bore a steam cylinder or a gun barrel; to bore a hole.
  • (v. t.) To make (a passage) by laborious effort, as in boring; as, to bore one's way through a crowd; to force a narrow and difficult passage through.
  • (v. t.) To weary by tedious iteration or by dullness; to tire; to trouble; to vex; to annoy; to pester.
  • (v. t.) To befool; to trick.
  • (v. i.) To make a hole or perforation with, or as with, a boring instrument; to cut a circular hole by the rotary motion of a tool; as, to bore for water or oil (i. e., to sink a well by boring for water or oil); to bore with a gimlet; to bore into a tree (as insects).
  • (v. i.) To be pierced or penetrated by an instrument that cuts as it turns; as, this timber does not bore well, or is hard to bore.
  • (v. i.) To push forward in a certain direction with laborious effort.
  • (v. i.) To shoot out the nose or toss it in the air; -- said of a horse.
  • (n.) A hole made by boring; a perforation.
  • (n.) The internal cylindrical cavity of a gun, cannon, pistol, or other firearm, or of a pipe or tube.
  • (n.) The size of a hole; the interior diameter of a tube or gun barrel; the caliber.
  • (n.) A tool for making a hole by boring, as an auger.
  • (n.) Caliber; importance.
  • (n.) A person or thing that wearies by prolixity or dullness; a tiresome person or affair; any person or thing which causes ennui.
  • (n.) A tidal flood which regularly or occasionally rushes into certain rivers of peculiar configuration or location, in one or more waves which present a very abrupt front of considerable height, dangerous to shipping, as at the mouth of the Amazon, in South America, the Hoogly and Indus, in India, and the Tsien-tang, in China.
  • (n.) Less properly, a very high and rapid tidal flow, when not so abrupt, such as occurs at the Bay of Fundy and in the British Channel.
  • () imp. of 1st & 2d Bear.

Example Sentences:

  • (1) The scaphoid silicone implant bore significant, although less, load than the normal scaphoid.
  • (2) Paparella type II tubes had a prolonged period of intubation and a decreased reintubation rate when compared with the smaller bore tubes.
  • (3) He says the next step will be moving to bore water, which will require people to boil water to drink.
  • (4) By the time the bud was half the diameter of the mother cell, it almost always bore a vacuole.
  • (5) Rather, there is evidence that students find these courses 'waffly' and boring.
  • (6) (2) E. granulosus, which includes two geographical groups: (a) Northern group, with two sub-species E. g borelis and E. g. canadensis, the life-cycle of which is sylvatic and that are agents of a pulmonary hydatidosis which may affect Man.
  • (7) Adult mongrel dogs were instrumented and placed in the bore of a Bruker Biospec 1.89 tesla superconducting magnet system.
  • (8) But the president said that the rest of the country had relied for too long on police to do the “dirty work” of containing urban violence and bore responsibility for the violent spectacle in Baltimore.
  • (9) It was shown by double staining that most of the Ia-bearing T cells also bore the T8 marker.
  • (10) Neither the peak serum E2 level attained nor the number of days of stimulation required bore a relationship to the BMI or the total body weight of these women.
  • (11) Experts and activists have said the murder bore all the hallmarks of Egypt’s notorious secret service, but Egyptian officials have consistently put forward alternative theories, including that Regeni was killed by a criminal gang and that his death was an isolated incident.
  • (12) The selectivity, efficiency and lifetime of normal- and narrow-bore columns for high-performance liquid chromatography were investigated for the separation and quantification of amino acids and the amino acid-like antibiotics phosphinothricin and phosphinothricylalanylalanine in biological samples.
  • (13) Soon my pillowcases bore rusty coins of nasal drippage.
  • (14) On 1 January 1832, he reports that: "The new year to my jaundiced senses bore a most gloomy appearance.
  • (15) The use of soft catheter materials in large-bore veins has allowed safe long-term venous access in human patients.
  • (16) The lesson for the international community, fatigued or bored by competing stories of Middle Eastern carnage, is that problems that are left to fester only get worse – and always take a terrible human toll.
  • (17) While Cropley talked to a member of staff, her daughter got a bit bored.
  • (18) Sometimes my press conferences are boring because I’m very polite or political.
  • (19) It was found that the emphasis in the reporting of adolescence bore little relationship to the importance or relevance of each area of study.
  • (20) And until recently, they bore children for foreigners who never even saw this place.

Trepan


Definition:

  • (n.) A crown-saw or cylindrical saw for perforating the skull, turned, when used, like a bit or gimlet. See Trephine.
  • (n.) A kind of broad chisel for sinking shafts.
  • (v. t. & i.) To perforate (the skull) with a trepan, so as to remove a portion of the bone, and thus relieve the brain from pressure or irritation; to perform an operation with the trepan.
  • (n.) A snare; a trapan.
  • (n.) a deceiver; a cheat.
  • (v. t.) To insnare; to trap; to trapan.

Example Sentences:

  • (1) The automatic half of both the motor which advances the trepan as well as the second motor which rotates the trepan is triggered by the sudden change in electrical resistance between the trepan and the patient's internal body fluid, at the final stage of penetration.
  • (2) Labyrinthine trepanation was performed in the majority of 16 patients with minor agenesis of middle ear involving either stapedovestibular ankylosis or absence of fenestra vestibuli.
  • (3) The introduction of a new motorized trepan in ophthalmic surgery by Arthur v. Hippel in 1891 was a very important achievement.
  • (4) Already Hippocrates recommended decompression-trepanation for the treatment of hydrocephalus.
  • (5) Borings with rose trepans without cooling fluid cause sometimes considerable heat lesions up to a depth of 30 mu.
  • (6) The method of choice for the treatment was the osteoplastic trepanation with a removal of the haematoma.
  • (7) A second similar observation was made in a 15 year old male, trepanated because of an epidural abscess.
  • (8) Surgical techniques were those of Mackensen (1972), the trap-door technique, and a trepanation of the sclerocornea with regrafting.
  • (9) Resection trepanation of the skull was carried out in 55 patients, osteoplastic in 23.
  • (10) It can be demonstrated that because of the stress on the femur and its mechanical characteristics (material distribution, density distribution, breaking strength, "structure" strength and the histological structure), a lateral trepanation of the femoral corticalis is weakening the bone in its mechanically most stressed part whereas an anterior fenestration is mechanically much better.
  • (11) Before trepanation they received infiltration anaesthesia of the scalp at the site of the proposed operation.
  • (12) The surgical removing of the apical part of the implant with the use of a Trepan bur made it possible to examine and visualize histologically and microradiographically the tissue adjacent to the implant.
  • (13) Due to these observations, Perier had suggested to treat deafness by trepanation.
  • (14) Investigations of the French physician Perier on patients after a trepanation of their skulls have shown that talking can be understood in the case of hermetically closed ears by means of the trepanation scar.
  • (15) Since skin problems as decubitus and infections are well known risks in osteoplastic trepanations in congenital malformations in children, we searched for a reduction in size of the implants and the possibility to use biodegradable materials.
  • (16) This case shows that the value of angiography for the diagnosis of brain death may sometimes be limited, at least in those cases in which osteoclastic trepanation has been performed or there are other causes for a skull defect, because they can prevent the rise of intracranial pressure which brings about the cerebral circulatory arrest.
  • (17) After osteoclastic trepanation 45 patients were investigated with ultrasonic tomography.
  • (18) This is effected by the ability to change the penetration angle of the electrode or by choosing a different point of trepanation.
  • (19) During trepanation a macroscopically typical finding of Sturge-Weber-syndrome could be demonstrated (angioma capillare et venosum) covering almost the entire right posterior hemisphere.
  • (20) Since the bone meal is usually obtained during trepanation, bone biopsies of other body regions are unnecessary.